# Gustavo Oliveira

Learning matlab

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**Content Feed**

Solved

metre to feet converter

The idea is to make a converter, which exchange meters to feets. We use a factor of 1m = 3.281*1f. so 3m are equals to 9.843 m...

2 months ago

Solved

Sum the 'edge' values of a matrix

Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...

2 months ago

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Find the area of a triangle

Given a triangle with a base b and height h, return the triangle area.

2 months ago

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Create a two dimensional zero matrix

You have to create a zero matrix of size (mxn) whose inputs are m and n and the elements of your matrix should be zeros. Exam...

2 months ago

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Determine the mean of matrix

Determine the mean of matrix without using mean function Hint: use simple algorithm

2 months ago

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multiply by three

Given the variable x as your input, multiply it by 3 and put the result equal to y. Examples: Input x = 2 Output y is ...

2 months ago

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Matlab Basics - Rounding I

Write a script to round x DOWN to the next lowest integer: e.g. x = 2.3 --> x = 2 also: x = 2.7 --> x = 2

2 months ago

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Matlab Basics II - Count rows in a matrix

Write a function that returns that number of rows in a vector or matrix x example: x = [1; 2; 3] output = 3

2 months ago

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Matlab Basics - Absolute Value

Write a script that returns the absolute value of the elements in x e.g. x = [-1 -2 -3 -4] --> y = [1 2 3 4]

2 months ago

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02 - Vector Variables 1

Make the following variable: <<http://samle.dk/STTBDP/Assignment1_2a.png>>

2 months ago

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Is My Wife Wrong?

Answer the question. (see also <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right Problem 149: Is my ...

2 months ago

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Create a Matrix of Zeros

Given an input x, create a square matrix y of zeros with x rows and x columns.

2 months ago

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Sum of first n positive integers

Given n, find the sum of first n positive integers Example: If n=10, then x=1,2,3,4,5,6,7,8,9,10. The sum of these terms is 55

2 months ago

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Annual Salary

What is the annual salary of Mr. Cody if he works 40 hours a week and gets $x per hour and a yearly bonus of $2000? (Let, 50 wee...

2 months ago

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find the surface area of a cube

given cube side length x, find the surface area of the cube, set it equal to y

2 months ago

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Write a code that will follow the equation y = x * (x + x) * x.

If x = 5, y = 5 * (5+5) * 5 = 250

2 months ago

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Find out total non zero element of matrix

Find out Non zero element of matrix A=magic(5) 17 24 1 8 15 23 5 7 14 16 4 6...

2 months ago

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Find the product of a Vector

How would you find the product of the vector [1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0] times 2?; x = [1 : 0.5 : 6]; y ...

2 months ago

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Element by element multiplication of two vectors

Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...

2 months ago

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The Answer to Life, the Universe, and Everything

A variation of a previous Hitchhiker's Guide to the Galaxy problem. *Inputs:* Life, the Universe, and Everything *Output:*...

2 months ago

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Sum the Digits of a Number

Given an integer, sum the digits repeatedly until you end up with a single value less than 10. For example, if you add the di...

2 months ago

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Y=X

Given an input variable x, output a variable y that is equal in value to x. Example: Input x = 1 Output y is 1 Inp...

2 months ago

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Cell joiner

You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

2 months ago

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Alternating sum

Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

2 months ago

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Return the Fibonacci Sequence

Write a code which returns the Fibonacci Sequence such that the largest value in the sequence is less than the input integer N. ...

2 months ago